Fix the address range used for mapping the PCIe host memory in the DDR.

Fixes: e6b69813 ("ARM: dts: qcom: sdx55: Add support for PCIe EP")
Signed-off-by: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220208175222.415762-1-manivannan.sadhasivam@linaro.org